Multiply Even Numbers by 5 No Calculator Shortcut

Discussion in 'Calculator Requests' started by math_celebrity, Jan 2, 2024.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    Take the number being multiplied by 5.
    Divide it in half
    Add a zero

    14 * 5
    Divide 14/2 = 7
    Add a 0 --> 70

     

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